Door-check.



l No. 805,545. PfvLENT'D DBG. 5, 1905.

A. KRUSE.

DOOR CHECK.

APPLICATION FILED JULY 21, 1'905.

t UNITED STATES -.PATENT oEEIoE.. f

To all whom t may concern:

Be it known that I, ADoLE KRUSE. a citizen of the United States,residing in Hoboken, in

jthe county of Hudson and State of New Jersey, have invented certain newand useful 1mprovements in Door-Checks, of .which the following is aspecification.

- This invention relates to an improved safety door-check for doorswhich is intended'to be used in place of the well-known safety-chains toprevent only the partial opening of the door and prevent forcibleentrance.

One lof the objects of the invention is to provide a device of this typewhich it is imposf sible to unlock or release except `when the door isclosed.

' llt is also an object of the invention to furnish a door-check whichafter having been released is automatically returned to operativeVposition upon the closing of the door.'

With these and other ends in view the in- Ventlon consists 1n the novelfeatures,arrange ments, and combinations of parts to be here- `showingthe door and doorcheck in inafter described, and recited in the claims.

[n the accompanying drawings, in Whichcorresponding parts are denoted bysimilar reference-letters, Figure 1 is a perspective view of one form ofthe improved door-check. Fig. 2 is a side elevation, partly in section,through the jamb of the door-frame; and Fig. 3 is a horizontal sectionon line 3 3, Fig. 1, partiallyopen position.

Referring to thedrawings, A 'indicates the jamb of a door-frame, and Dthe door hinged to said frame. Attached to the jambl A at a point belowthe lock of the'door is an oblong plate a, which is slightly countersunkin one face of said jamb, as shown. Said plate a is provided at eitherside with a vertically-disposed lug a', made integral therewith, andbetween said lugs is pivoted, by means of a pin extending between thesame, a hook-shaped checkV member of substantially U shape` thelpivot-ed leg of said member being of greater.

length than the bent-up or outer leg of the same. The inner leg of saidmember is thus suspended from the lugs o' in such a manner as to lieclosely against the door-jamb, and the distance between the upperportions of said legs is greater than at their lower portions for apurpose which will hereinafter appear. The upper extremity of the outerleg of said hookshaped member is provided with an inclined head Attachednear the outer edge of the door is Specification of Letters Patent.

Application filed July 21, 1905. Serial N0 2v70,726i

,said check member.

yextension-arm clears the head b.

Patented Dec. 5, 1905.

a latch-plate ,upon which is pivoted a lift- I ing-latch f, which isguided in vertical direc Ation by a keeper e, projecting outwardly atright angles from said plate, as shown, and preferably made .integraltherewith. The keeper. e is disposed below the pivotalconnection of thehook-shaped check member'h'so that in its position of rest the latch f,which rests upon the keeper e, is retained in horizontal alinement withthe enlarged head In' in The latch f is provided at its free end with anoffset portion f', eX-

tending at'approximately right angles thereto. A.An extension-arm f2 ismade integral with said offset portion and extends parallel to the mainportion of said latch in order to take into the open portion of theupwardlydisposed hook b. In order to guide the latch finto the keeperye,the latter is ,provided at` its upper portion with a curved surface e',over which said latch is designed to rido, vas will be vreadilyunderstood. The arm f2, which extends laterally from the offset f', eX`-.tends to quite a distance beyond the member and is provided at its freeends with'an en'- largement f3 for permitting the easy lifting of thesame.- l

When the door is locked, the parts are in the position shown in Fig. l,the latch f being retained by its keeper, while the extension or arm f2takes into the hook b. As soon as the door is opened the lateral motionof the arm f2 is transmitted to the hook b, as said arm abuts againstand presses inwardly the bentup leg of said hook, so that the latter iSswung upwardly and into the room, as shown vin Fig.' 3, until the arm f2after sliding along said hook abuts against the bent portion thereof,and thereby prevents the further` opening of the door. When it' isdesired to `open the door, it has to be returned to closed position,after which the latch and extension-arm are lifted by .taking hold ofthe enlargement f3 so that said latch clears the keeper e and said Thedoor can then be opened, the check member b remaining immovable. Whenthe door is closed again, the extension-arm f2 rides over the inclinedhead and takes into the member b, while the latch proper rides over thecurved portione of the keeper and'drops into the IOO latter, the partsbeing thus restored to their normal or operative position.

` When it is not desired to use the safetycheck, the latch is moved onitspivot to an angle of two hundred'and seventy degrees, so

IIO

that it is suspended in the position shown in dotted linesl in Fig. l.The door can then be completely opened, all the parts of the safetycheckbeing rendered inoperative. door-check is in its normal or operative.position, a person leaving the house lifts the latch so as to clear theinclined head and the latchkeeper, then opens the door, and closes itwhen outside. The extension-arm meanwhile passes over the inclined headof the hookshaped member and drops into said member, While the latch isagain in a position to be vertically guided by its keeper. The doorcheckis thereby returned into normal position automatically upon the closingofthe door and does not have to be adjusted, as is the case With thesafety-chains now in use.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. rIhe combination, with a door and doorjamb, of acheck member suspended from the latter, and a lifting-latch on thedoormovable into and` out of said member.

2. The combination, With a door and doorjamb, of a check membersuspended from the latter, and a member on the door movable into and outof coperative relation With said check member only when the latter is inpendent position.

3. In a cheek device for doors, a verticallyswinging hook-shaped memberattached to the door-jamb, and a device on the door movable into and outof said member only when the latter is disposed vertically,

4. The combination with the door and doorjamb, of a check member pivotedto the latter, and a lifting-latch on the door movable into and out ofcooperative relation with said check member only when the latter is inpendent position.

When the 5. In combination, a latch pivot-ed to the door, and ahook-shaped member on the doorjamb into and out of which said latch ismovable, said latch being automatically returned into said member, afterrelease therefrom, upon the closing of the door.

6. The combination, with a door and doorjamb, of a hook-shaped checkmember suspended from the latter and provided with an inclined head, anda latch pivoted to the door and designed to ride over said head and takeinto said check member, being slidable therein.

7. In a check device for doors, in combination, a hook-shaped memberpivoted to the door-jamb to swing vertically, and a member on the doormovable into and out of said firstnamed member, said door memberautomatically taking into said hook-shaped member when the door isclosed.

8. In a check device for doors, the combination, with the door anddoor-jamb, of acheck member suspended from the latter, and a device onthe door movable into cooperative relation with said member only whenthe latter is in pendent position, and automatically returnable intosuch relation, after release therefrom, when the door is closed.

9. The combination, with a hook-shaped member pivoted to the door-jamband provided at the upper end of its outer leg with an inclined head, ofa latch pivoted to the door and provided with an extension-arm normallyin horizontal alinement with said head.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

ADOLF KRUSE.

Witnesses:

PAUL GOEPEL, HENRY J. SUHRBIER.

